A high-rise building intelligent cleaning system based on a tethered unmanned aerial vehicle
Patent Information
- Application Number
- CN202522301095.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-30
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-10-30
AI Technical Summary
系留无人机通过地面直接供电,具有长续航、高效率的作业特点,但高层建筑中材料多样,如玻璃幕墙、金属幕墙、石材幕墙等,针对不同种类的幕墙,需要使用不同材质的毛刷,以减少清洁过程中因毛刷不适配对幕墙造成的损伤,但常见的系留无人机针对不同种类的幕墙清洗时需要将其落至地面进行人工更换毛刷,影响使用,且针对一些顽固污渍,长时间冲洗易造成水资源浪费,导致其在使用时仍存在不足
1、喷头出水模式的传统调控通常为人工手拧旋转调节,但在系留无人机作业时处于高空中,本方案中通过微型电机组驱动齿轮转动,由齿轮带动与之啮合的齿圈转动对喷头的出水模式进行调控,便于喷水组件满足不同场景下的使用需求。
Smart Images

Figure CN224785402U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cleaning device technology, specifically a high-rise building intelligent cleaning system based on tethered drones. Background Technology
[0002] With the rapid pace of urbanization and the increasing number of high-rise buildings, regular cleaning of exterior walls is necessary to maintain their aesthetic appeal and extend their lifespan. Traditional manual cleaning methods are inefficient and pose significant safety hazards. Currently, drone technology is developing rapidly, offering a solution for cleaning high-rise buildings, especially tethered drones. Tethered drones are powered directly from the ground, offering long endurance and high efficiency. However, high-rise buildings utilize diverse materials such as glass, metal, and stone curtain walls. Different types of curtain walls require different brushes to minimize damage caused by incompatible brushes. Common tethered drones require manual brush replacement after being landed for different types of curtain walls, impacting usability. Furthermore, prolonged rinsing for stubborn stains wastes water, highlighting the limitations of tethered drones in their application. Utility Model Content
[0003] The technical problem this invention aims to solve is to overcome existing defects and provide a high-rise building intelligent cleaning system based on tethered drones. During use, it can automatically change to appropriate brushes according to different types of curtain walls, reducing damage to the curtain walls during cleaning. It is suitable for various curtain wall types, including glass, metal, and stone curtain walls. It can also be used for water heating, facilitating the rapid dissolution of stubborn stains on the exterior of the curtain wall using high-temperature water. Combined with the brushes, it further improves curtain wall cleaning efficiency and effectively solves the problems in the background technology.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-rise building intelligent cleaning system based on a tethered drone, comprising a mounting plate, a water spraying assembly mounted on the side of the mounting plate, the water spraying assembly comprising a delivery pipe, an adjustable nozzle mounted at the end of the delivery pipe, and a first driving assembly for driving the nozzle to rotate at the end of the delivery pipe, a heating assembly for heating the water flow in the inner cavity mounted outside the delivery pipe, a mounting frame mounted on the mounting plate, a position-adjustable cleaning assembly mounted on the mounting frame, the cleaning assembly comprising a mounting base, a mounting plate mounted on the upper side of the mounting base, a brush assembly mounted on the mounting plate, and a second driving assembly for driving the mounting plate to rotate mounted on the side of the mounting base.
[0005] As a preferred technical solution of this utility model, a toothed ring is sleeved on the outer side of the nozzle near the delivery pipe. The first drive component includes a micro motor unit installed on the side of the delivery pipe. A gear is installed on the output shaft of the micro motor unit. The gear meshes with the toothed ring. A protective box is provided on the side of the delivery pipe to protect the toothed ring and the first drive component.
[0006] As a preferred technical solution of this utility model, a protective cylinder is fixed to the side of the mounting plate, the conveying pipe is installed inside the protective cylinder, and one end of the conveying pipe passes through and extends to the outside of the protective cylinder. An induction heating coil wrapped around the outside of the conveying pipe is provided inside the protective cylinder, and a connecting pipe communicating with the inner cavity of the conveying pipe is installed on the side of the protective cylinder.
[0007] As a preferred embodiment of this utility model, an electric telescopic cylinder is mounted on the mounting frame, and the mounting base is mounted on the telescopic end of the electric telescopic cylinder.
[0008] As a preferred embodiment of the present invention, the second drive component includes a servo motor mounted on a mounting base, and the output shaft of the servo motor is connected and fixed to the center of the side of the mounting plate.
[0009] Compared with the prior art, the beneficial effects of this utility model are: 1. Traditional control of the nozzle water output mode is usually done by manually turning the knob. However, when tethered drones are operating at high altitudes, this solution uses a micro motor to drive a gear to rotate. The gear then drives a meshing gear ring to rotate, thereby controlling the nozzle water output mode. This allows the water spray assembly to meet the usage needs of different scenarios.
[0010] 2. The induction heating coil has high energy consumption. During use, the induction heating coil is powered by the power supply system of the tethered drone. When the water flows in the delivery pipe, the induction heating coil heats it, causing the nozzle at the end of the delivery pipe to spray high-temperature water outward, which accelerates the dissolution of stains on the curtain wall and further improves cleaning efficiency. The protective cylinder is made of heat-insulating material to reduce heat leakage.
[0011] 3. The connecting pipe is a flexible tube that can be connected to the power cord of the tethered drone using cable ties or clips, reducing the impact on the flight of the tethered drone. The connecting pipe ensures effective water supply to the ground, eliminating the need for repeated water injection by the tethered drone. In addition, the water supply system is set up separately from the tethered drone, reducing the weight of the tethered drone and simplifying its control.
[0012] 4. The high-rise building intelligent cleaning system based on tethered drones in this utility model example can clean the curtain wall by spraying water from the nozzles, and can also assist the curtain wall cleaning by controlling the servo motor to drive the brush group to swing left and right. This improves the cleaning quality of the curtain wall. The brush group includes at least soft brushes and hard brushes. When cleaning different types of curtain walls, the servo motor can drive the mounting plate to rotate, thereby adjusting the position of different types of brushes in front of the tethered drone to clean the curtain wall.
[0013] 5. The high-rise building intelligent cleaning system based on tethered drones in this utility model example uses an electric telescopic cylinder to adjust the position of the brush group to meet the cleaning needs of the curtain wall at different depths or distances. At the same time, when the servo motor controls the brush group to swing and clean the curtain wall, it can be used in conjunction with the electric telescopic cylinder to facilitate the tethered drone to adhere the brush group to the curtain wall with appropriate force and distance for cleaning. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a front view structural diagram of the present utility model; Figure 3 This is a schematic diagram of the structure of this utility model from another perspective; Figure 4 for Figure 3 A magnified structural diagram of point A in the middle.
[0015] In the diagram: 1. Mounting plate, 2. Protective cylinder, 3. Conveying pipe, 4. Nozzle, 5. Induction heating coil, 6. Gear ring, 7. Micro motor unit, 8. Gear, 9. Protective box, 10. Connecting pipe, 11. Mounting bracket, 12. Electric telescopic cylinder, 13. Mounting base, 14. Mounting plate, 15. Servo motor, 16. Brush assembly. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0017] Please see Figure 1-4This utility model provides a technical solution: a high-rise building intelligent cleaning system based on a tethered drone, including a mounting plate 1. The mounting plate 1 is provided with multiple positioning holes. In use, it is fixed to the tethered drone by setting bolts or other structures in the positioning holes. A water spraying assembly is installed on the side of the mounting plate 1. The water spraying assembly includes a delivery pipe 3, which is a rigid pipe. An adjustable nozzle 4 is installed at the end of the delivery pipe 3. The water output mode can be adjusted by rotating the nozzle 4 to meet the water output needs such as water flow and water mist. It is suitable for use in different scenarios. The adjustable nozzle 4 adopts existing technology and is widely used in cleaning and watering sprayers.
[0018] A first drive assembly for rotating the nozzle 4 is provided at the end of the delivery pipe 3. A gear ring 6 is fitted on the outside of the nozzle 4 near the delivery pipe 3. The first drive assembly includes a micro motor 7 mounted on the side of the delivery pipe 3. A gear 8 is mounted on the output shaft of the micro motor 7. The gear 8 meshes with the gear ring 6. Traditionally, the water output mode of the nozzle 4 is adjusted manually by turning it. However, when the tethered drone is operating at high altitude, this solution uses the micro motor 7 to drive the gear 8 to rotate, which in turn drives the meshing gear ring 6 to rotate, thus adjusting the water output mode of the nozzle 4. This allows the water spray assembly to meet the usage requirements of different scenarios. Preferably, a protective box 9 is provided on the side of the delivery pipe 3 to protect the gear ring 6 and the first drive assembly. The protective box 9 is used to protect the gear ring 6, the micro motor 7, the gear 8, and other components.
[0019] A heating component for heating the water flow in the inner cavity is installed on the outside of the delivery pipe 3. A protective cylinder 2 is fixed on the side of the mounting plate 1. The protective cylinder 2 is installed on the mounting plate 1 through a positioning seat. The positioning seat is made of heat-insulating material, including but not limited to ceramic material or polymer material. The heat-insulating material is used to reduce the impact of the heating component on the tethered drone when it is in use. The delivery pipe 3 is installed inside the protective cylinder 2, and one end of the delivery pipe 3 passes through and extends to the outside of the protective cylinder 2. An induction heating coil 5 is installed inside the protective cylinder 2 and wound around the outside of the delivery pipe 3. The induction heating coil 5 has high energy consumption. When in use, the power supply of the induction heating coil 5 is powered by the power supply system of the tethered drone. When the water flows in the delivery pipe 3, it is heated by the induction heating coil 5, so that the nozzle 4 at the end of the delivery pipe 3 sprays high-temperature water outward, which accelerates the dissolution of stains on the curtain wall and further improves the cleaning efficiency. The protective cylinder 2 is made of heat-insulating material to reduce heat leakage.
[0020] The protective cylinder 2 has a connecting pipe 10 installed on its side, which is connected to the inner cavity of the delivery pipe 3. The connecting pipe 10 is a flexible hose, which can be connected to the power supply cable of the tethered drone by cable ties or buckles, reducing the impact on the flight of the tethered drone. The setting of the connecting pipe 10 ensures effective water supply to the ground, eliminating the need for the tethered drone to repeatedly rise and fall to refill water. At the same time, the water supply system is set up separately from the tethered drone, reducing the counterweight of the tethered drone and simplifying the control of the tethered drone.
[0021] Mounting plate 1 is equipped with mounting bracket 11, and mounting bracket 11 is equipped with a position-adjustable cleaning component. The cleaning component includes mounting base 13, mounting plate 14 is mounted on the upper side of mounting base 13, and brush assembly 16 is mounted on mounting plate 14. Brush assembly 16 is fixed by screws and is replaceable. A second drive assembly for driving mounting plate 14 to rotate is mounted on the side of mounting base 13. The second drive assembly includes servo motor 15 mounted on mounting base 13. The output shaft of servo motor 15 is connected and fixed to the middle of the side of mounting plate 14. While spraying water from nozzle 4 to clean the curtain wall, the brush assembly 16 can be driven to swing left and right by controlling servo motor 15 to assist in cleaning the curtain wall and improve the cleaning quality. Brush assembly 16 includes at least soft brushes and hard brushes. When cleaning different types of curtain walls, the mounting plate 14 can be rotated by servo motor 15 to adjust the position of different types of brushes in front of the tethered drone for cleaning the curtain wall.
[0022] An electric telescopic cylinder 12 is installed on the mounting bracket 11, and the mounting base 13 is installed on the telescopic end of the electric telescopic cylinder 12. The electric telescopic cylinder 12 is used to adjust the position of the brush group 16 to meet the curtain wall cleaning needs at different depths or distances. At the same time, when the servo motor 15 controls the brush group 16 to swing and clean the curtain wall, it can be used in conjunction with the electric telescopic cylinder 12 to facilitate the tethered drone to attach the brush group 16 to the curtain wall with appropriate force and distance for cleaning.
[0023] The induction heating coil 5, micro motor group 7, electric telescopic cylinder 12, servo motor 15 and other electronic components used in this utility model are all commonly used electronic components in the prior art. Their working methods and circuit structures are well-known technologies and will not be described in detail here. It should be noted that the induction heating coil 5, micro motor group 7, electric telescopic cylinder 12, servo motor 15 and other electronic components are all connected to the ground control system of the tethered UAV. The ground control system controls the operation of various electronic components to meet the operational needs in different scenarios.
[0024] This intelligent cleaning system for high-rise buildings can automatically change to the appropriate brush according to different types of curtain walls, reducing damage to the curtain wall when cleaning it. It is suitable for various types of curtain walls such as glass curtain walls, metal curtain walls, and stone curtain walls. It can also be used for water heating treatment, which facilitates the rapid dissolution of stubborn stains on the exterior of the curtain wall through high-temperature water flow, further improving the cleaning efficiency of the curtain wall in conjunction with the brush.
[0025] The following is supplementary information: 1. By utilizing technologies such as GPS (Global Positioning System) and LiDAR (Light Detection and Ranging), tethered drones can achieve precise positioning, ensuring they accurately reach their designated locations. GPS receives signals from multiple satellites to calculate the drone's latitude and longitude coordinates, providing high-precision positioning over a wide area. LiDAR, as a supplementary technology, generates 3D point cloud data by emitting laser beams and measuring the time it takes for them to reflect back, enabling high-precision environmental modeling and local positioning. Furthermore, visual sensors (such as cameras) can also assist in positioning, further improving accuracy and reliability through image processing and feature matching. By fusing data from GPS, LiDAR, and visual sensors, tethered drones can achieve precise navigation and positioning, ensuring efficient and safe completion of high-rise building curtain wall cleaning tasks.
[0026] 2. Select appropriate cleaning tools based on the different curtain wall materials. For example, for glass curtain walls, use a high-pressure water gun with a specialized cleaning agent to remove surface stains and dust while avoiding scratches on the glass. For metal curtain walls, use a soft-bristled brush and a mild cleaning agent to effectively remove dirt without damaging the metal surface coating. For stone curtain walls, use a low-pressure water gun and a soft-bristled brush to prevent excessive water pressure from causing cracks or peeling of the stone. Furthermore, adjust the water pressure and scrubbing intensity according to actual needs to suit different curtain wall materials and levels of contamination.
[0027] 3. Operation is controlled via a ground control station or mobile device, allowing operators to monitor the drone's status in real time and intervene manually, such as adjusting flight paths and controlling the cleaning tools' operation. Equipped with high-resolution cameras and sensors, it collects images and data in real time during the cleaning process for evaluating cleaning effectiveness and optimizing future strategies. The system has fault diagnosis and safety protection functions, capable of monitoring the drone's operating status in real time, such as battery level, flight speed, and attitude angle. Upon detecting abnormalities, it automatically takes protective measures, such as automatic return to home or emergency landing, to ensure operational safety. Through these integrated functions, the intelligent control system not only simplifies the operation process and improves cleaning efficiency but also significantly enhances the safety and reliability of drones in high-rise building curtain wall cleaning.
[0028] 4. To ensure the safety of drones during high-rise building curtain wall cleaning, multiple safety protection mechanisms, such as collision avoidance and obstacle avoidance, must be implemented. Drones need to be equipped with advanced sensors, including radar, visual sensors, and ultrasonic sensors, to automatically adjust their flight paths to avoid obstacles. Furthermore, the system should have fault diagnosis capabilities, enabling real-time monitoring of the drone's operational status. In the event of an anomaly, such as low battery or communication interruption, automatic protective measures will be triggered, such as automatic return to home or emergency landing, ensuring the drone's safe return to the ground. To further enhance safety, the system can also set up geofences to restrict drone flight to specific areas, preventing it from flying outside the designated operating range.
[0029] The parts not disclosed in this utility model are all prior art, and their specific structures, materials, and working principles will not be described in detail. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A high-rise building intelligent cleaning system based on tethered drones, comprising a mounting plate (1), characterized in that: A water spray assembly is installed on the side of the mounting plate (1). The water spray assembly includes a delivery pipe (3). An adjustable nozzle (4) is installed at the end of the delivery pipe (3). A first drive assembly for driving the nozzle (4) to rotate is provided at the end of the delivery pipe (3). A heating assembly for heating the water flow in the inner cavity is provided outside the delivery pipe (3). A mounting bracket (11) is installed on the mounting plate (1). A position-adjustable cleaning assembly is installed on the mounting bracket (11). The cleaning assembly includes a mounting base (13). A mounting plate (14) is installed on the upper side of the mounting base (13). A brush assembly (16) is installed on the mounting plate (14). A second drive assembly for driving the mounting plate (14) to rotate is installed on the side of the mounting base (13).
2. The intelligent cleaning system for high-rise buildings based on tethered drones according to claim 1, characterized in that: A toothed ring (6) is fitted on the outside of the nozzle (4) near the delivery pipe (3). The first drive assembly includes a micro motor group (7) installed on the side of the delivery pipe (3). A gear (8) is installed on the output shaft of the micro motor group (7). The gear (8) meshes with the toothed ring (6). A protective box (9) is provided on the side of the delivery pipe (3) to protect the toothed ring (6) and the first drive assembly.
3. The intelligent cleaning system for high-rise buildings based on tethered drones according to claim 1, characterized in that: The mounting plate (1) has a protective cylinder (2) fixed on its side. The conveying pipe (3) is installed inside the protective cylinder (2), and one end of the conveying pipe (3) extends through and to the outside of the protective cylinder (2). An induction heating coil (5) is provided inside the protective cylinder (2) and wound around the outside of the conveying pipe (3). A connecting pipe (10) that communicates with the inner cavity of the conveying pipe (3) is installed on the side of the protective cylinder (2).
4. The intelligent cleaning system for high-rise buildings based on tethered drones according to claim 1, characterized in that: An electric telescopic cylinder (12) is mounted on the mounting bracket (11), and the mounting seat (13) is mounted on the telescopic end of the electric telescopic cylinder (12).
5. The intelligent cleaning system for high-rise buildings based on tethered drones according to claim 1, characterized in that: The second drive assembly includes a servo motor (15) mounted on a mounting base (13), the output shaft of which is connected and fixed to the center of the side of the mounting plate (14).